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Finding the Fourth Proportional to 139,959,860.64, 209,915,863.56 and 37,699,983.44

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Solution

The fourth proportional to 139,959,860.64, 209,915,863.56 and 37,699,983.44 is: 56,543,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,959,860.64 : 209,915,863.56 = 37,699,983.44 : x
  2. Step 2: Convert to fraction form
    139,959,860.64/209,915,863.56 = 37,699,983.44/x
  3. Step 3: Cross multiply
    139,959,860.64x = 209,915,863.56 × 37,699,983.44
  4. Step 4: Simplify right side
    139,959,860.64x = 7,913,824,580,005,299
  5. Step 5: Solve for x
    x = 7,913,824,580,005,299/139,959,860.64
  6. Step 6: Final answer
    x = 56,543,530.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.